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Bio 669 Quiz 4 Questions And Answers With Verified Solutions 100% Correct!!!
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Bio 669 Quiz 4 Questions And Answers With Verified Solutions 100% Correct!!!
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Bio 669 Quiz 4 Questions And AnswersWith Verified Solutions 100% Correct!!!
varicose veins - ANSWER✔✔ vein in which blood has pooled producing distended,
tortous, palpable vesseks
-caused by trauma or gradual vein distention
risk factors-female, family hx, fat, pregnant, DVT, prior leg injury
chronic venous insufficiency - ANSWER✔✔ inadequate venous return over a long
period due to varicose veins or valvular incompetence
-can lead to venous stasis ulcer
thrombus formation - ANSWER✔✔ obstruction of venous flow leading to
increased venous pressure
-3 factors (triad of virchow) promote thrombosis=
1)venous stasis 2)venous endothelial damage
3)hypercoaguable states
-usually occurs in lower extremities & is asymptomatic
superior vena cava syndrome - ANSWER✔✔ progressive occlusion of SVC that
leads to venous distention in upper extremities & head
-causes=tumors of lymphatics or bronchus
-a low pressure vessel
HTN - ANSWER✔✔ consistent elevation of systemic arterial BP
-systolic >140
, -diastolic > 90
primary HTN - ANSWER✔✔ most common, aka essential or idiopathic
-genetic & environmental factors
-SNS causes increased HR & vasoconstriction which increase BP
-overactive RAAS causes Na & water retention, increased vascular resistance,
insulin resistance & platelet aggregation
-decreased renal excretion of salt=pressure-natriuresis relationship
secondary HTN - ANSWER✔✔ caused my systemic disease process that raises
peripheral vascular resistance or cardiac output
examples=renal disease, adrenocorticoid tumors, adrenamedullary tumors, or
drugs
complicated HTN - ANSWER✔✔ chronic damage to blood vessels & tissues
leading to target organ damage in heart, kidneys, brain, & eyes
malignant HTN - ANSWER✔✔ HTN crisis
-rapidly progressing HTN when diastolic is >140
-will cause cerebral encephalopathy & life threatening organ damage if not fixed
tx of HTN - ANSWER✔✔ loop or thiazide diuretics, ACE or ARB inhibitors, Ca
channel blockers
-no longer beta blockers b/c they have a higher rate of stroke than those drugs
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